<template>
  <div class="login">
    <section class="form_container">
      <div class="manage_tip">
        <span class="title">后台管理系统</span>
        <el-form
          :model="loginUser"
          :rules="rules"
          ref="loginUser"
          label-width="90px"
          class="loginUser"
        >
          <el-form-item label="邮箱" prop="email">
            <el-input type="email" v-model="loginUser.email" placeholder="请输入邮箱"></el-input>
          </el-form-item>

          <el-form-item label="密码" prop="password">
            <el-input type="password" v-model="loginUser.password" placeholder="请输入密码"></el-input>
          </el-form-item>

          <el-form-item>
            <el-button type="primary" @click="loginForm('loginUser')">登录</el-button>
          </el-form-item>
           <p>
                还没有注册？现在 <router-link :to="{path:'register'}">注册</router-link> 
           </p>
        </el-form>
      </div>
    </section>
  </div>
</template>
<script>
import jwtDedeco from 'jwt-decode';
export default {
  name: "login",
  data() {
    return {
      loginUser: {
        email: "",
        password: ""
      },
      rules: {
        email: [
          {
            type: "email",
            required: true,
            message: "邮箱格式不正确",
            trigger: "blur"
          }
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          { min: 6, max: 10, message: "密码在6到10位数之间", trigger: "blur" }
        ]
      }
    };
  },
  methods: {
    loginForm(formName) {
      this.$refs[formName].validate(valid => {
        if (valid) {
          this.$axios.post('/api/users/login',this.loginUser).then((result) => {
              const {token} = result.data;
              //存储到ls
              localStorage.setItem('eleToken',token);
              //解析token
              const decode = jwtDedeco(token);
              //存储到vuex
              this.$store.dispatch('setAuthenticated',!this.isEmpty(decode));
              this.$store.dispatch('setUser',decode);

              this.$router.push('/index');
          });
        }
      });
    },
    isEmpty(value){
      return (
        value === undefined || value === null 
        || (typeof value === "object" && Object.keys(value).length == 0)
        || (typeof value === "string" && value.trim().length == 0)
      );
    }
  }
};
</script>
<style scoped>
.login {
  position: relative;
  width: 100%;
  height: 100%;
  background: url("../assets/bg.jpg") no-repeat center center;
  background-size: 100% 100%;
}
.form_container {
  position: absolute;
  width: 370px;
  height: 210px;
  top: 10%;
  left: 34%;
  padding: 25px;
  border-radius: 5px;
  text-align: center;
}

.form_container .manage_tip .title {
  font-family: "Microsoft YaHei";
  font-weight: bold;
  font-size: 26px;
  color: #fff;
}

.loginUser {
  background: #fff;
  border-radius: 5px;
  padding: 20px 40px 20px 0px;
  margin-top: 20px;
}
.loginUser button {
  width: 100%;
}
.loginUser p{
    text-align: right;
}
.loginUser p a{
    color: #409EFF;
    text-decoration: none;
}

</style>
